Recent content in Zero-Day Exploit on Microsoft Security Response Center
Today, we released Security Advisory 2963983 regarding an issue that impacts Internet Explorer. At this time, we are only aware of limited, targeted attacks. This issue allows remote code execution if users visit a malicious website with an affected browser. This would typically occur by an attacker convincing someone to click a link in an email or instant message.
Over the weekend we became aware of an active attack relying on an unknown remote code execution vulnerability of a legacy ActiveX component used by Internet Explorer. We are releasing this blog to confirm one more time that the code execution vulnerability will be fixed in today’s UpdateTuesday release and to clarify some details about the second vulnerability reported.
Late last Friday, November 8, 2013, a vulnerability, CVE-2013-3918, affecting an Internet Explorer ActiveX Control was publically disclosed. We have confirmed that this vulnerability is an issue already scheduled to be addressed in “Bulletin 3”, which will be released as MS13-090, as listed in the November Advanced Notification Service (ANS). The security update will be distributed to customers tomorrow via Windows Update at approximately 10:00 AM PDT.
Today we released MS13-080 which addresses nine CVEs in Internet Explorer. This bulletin fixes multiple security issues, including two critical vulnerabilities that haven been actively exploited in limited targeted attacks, which we will discuss in details in this blog entry. CVE-2013-3893: the final patch after Fix it workaround Previously, Microsoft released Security Advisory 2887505 and made available the Fix it workaround 51001 to provide earlier protection to all customers for an actively exploited security issue that was reported to us.
Fall is a season traditionally associated with a harvest after planting the seeds and tending the crops. Today I’m proud to announce the names of six very smart people who have helped us make our products more secure by participating in our new bounty programs. When we launched our bounty programs in June this year, we had a few strategic goals in mind:
Today, we released a Fix it workaround tool to address a new IE vulnerability that had been actively exploited in extremely limited, targeted attacks. This Fix it makes a minor modification to mshtml.dll when it is loaded in memory to address the vulnerability. This Fix it workaround tool is linked fromSecurity Advisory 2887505 that describes this issue.
We’re three weeks into our new world of bounties for Microsoft products now, and as the clock ticks down on one program, we’re prepping for some live excitement with one of the others. First, the Internet Explorer 11 Preview Bounty is entering its final 10 days; the bounty period for that program closes on the 26th of July.
When Microsoft decided to offer not one but three new bounties, paying outside researchers directly for security research on some of our latest products, we put a lot of thought into developing those bounty programs. We developed a customized set of programs designed to create a win-win between the security researcher community and Microsoft’s customers, by focusing on key data about what researchers were doing with vulnerabilities they found in our products.
Over the weekend we received a report from our partners about a possible unpatched Internet Explorer vulnerability being exploited in the wild. The exploit code uses a memory corruption bug triggered from a webpage but it deeply leverages a Flash SWF file in order to achieve reliable exploitation and code execution.
As we announced last week, Microsoft is now offering $100,000 bounties for new exploitation techniques that can bypass our latest platform-wide defenses and up to $50,000 bonus bounties for defense ideas. We’re also offering (from now until July 26) bounties of up to $11,000 for critical security issues in Internet Explorer 11 Preview.
Today, we are making available a “Microsoft Fix it” solution to block attacks leveraging the Internet Explorer 8 (IE8) vulnerability described in Security Advisory 2847140. This code-signed, easily downloadable and install-able Fix it package uses the Windows application compatibility toolkit to make a small change at runtime to mshtml.dll every time IE is loaded.
Today, we released Security Advisory 2794220 regarding an issue that impacts Internet Explorer 6, 7, and 8. We are only aware of a very small number of targeted attacks at this time. This issue allows remote code execution if users browse to a malicious website with an affected browser. This would typically occur by an attacker convincing someone to click a link in an email or instant message.
Today, the MSRC released Security Advisory 2794220 alerting customers to limited, targeted attacks affecting customers using Internet Explorer 6, 7, and 8. Internet Explorer 9 and Internet Explorer 10 users are safe. More information about the vulnerability and exploit In this particular vulnerability, IE attempts to reference and use an object that had previously been freed.
Today we are pleased to announce a new version of the Enhanced Mitigation Experience Toolkit (EMET) with brand new features and mitigations. Users can click here to download the tool free of charge. The Enhanced Mitigation Experience Toolkit enables and implements different techniques to make successful attacks on your system more difficult.
Hi everyone, Today we released Security Advisory 2458511 to address a new vulnerability that could impact Internet Explorer users if they visit a website hosting malicious code. As of now, the impact of this vulnerability is extremely limited and we are not aware of any affected customers. The exploit code was discovered on a single website which is no longer hosting the malicious code.
Today on the [MSRC blog,](«http://blogs.technet.com/b/msrc/archive/2010/07/22/announcing-coordinated-vulnerability-disclosure.aspx> >) Matt Thomlinson, General Manager of Trustworthy Computing Security, announced our new philosophy on Coordinated Vulnerability Disclosure. I wanted to provide some context and history on how this came about. This post is about changing the way we at Microsoft talk about some familiar disclosure concepts, and is meant as an introduction to how Microsoft would like to engage with researchers.
We’ve just updated Microsoft Security Advisory 2286198 to let customers know that we now have an automated “Fix It” available to implement the workaround we first outlined in our original posting on Friday, July 16, 2010. More information is available in the KB article 2286198, but in summary running the “Fix It” can help prevent attacks attempting to exploit this vulnerability.
Hi everyone. As part of our usual monthly update cycle, today Microsoft is releasing four security bulletins to address five vulnerabilities in Windows and Microsoft Office. MS10-042 resolves a publicly disclosed and actively exploited vulnerability discussed in Security Advisory 2219475. The update addresses an issue in the Windows Help and Support Center feature included in Windows XP and Windows Server 2003.
Yesterday evening, one of Google’s security researchers publicly released vulnerability details and a working exploit for an unpatched vulnerability in Windows XP and Windows Server 2003. This afternoon, we’ve released security advisory 2219475 with official guidance. We’d like to use this blog entry to share more details about the issue and ways you can protect yourself.
Hello - We have released Security Advisory 2219475, addressing the vulnerability in the Windows Help and Support Center function in Windows XP and Windows Server 2003. We are not aware of any active attacks at this time. Customers running Windows Vista, Windows 7, Windows Server 2008 and Windows Server 2008 R2 are not vulnerable to this issue or at risk of attack.
Hi everyone, Last week Adrian Stone and I conducted a webcast to cover the Internet Explorer out-of-band security bulletin release. We only spent a short period of timing on the presentation and then spent the rest of the time answering customer questions which you can read here. There were some interesting questions and hopefully those who attended came away with a better understanding about how to better protect themselves from emerging threats.
Handle: Cluster IRL: Maarten Van Horenbeeck Rank: Senior Program Manager Likes: Slicing covert channels, foraging in remote memory pools, and setting off page faults Dislikes: The crackling sound of crypto breaking, warm vodka martni Handle: Mando Picker IRL: Dustin Childs Rank: Security Program Manager Likes: Protecting customers, working with security researchers, second Tuesdays, bourbon, mandolins
Hosts: Adrian Stone, Senior Security Program Manager Lead Jerry Bryant, Group Manager, Response Communications Website: TechNet/security Chat Topic: March 2010 Out-of-Band Security Bulletin Date: Tuesday, March 30, 2010 Q: CVE-2010-0483 , like CVE-2010-0806 , is a remote code executable vulnerability with an exploit code that has been published and publicly available since March 1, 2010.
Hi everyone, Today we released MS10-018 out-of-band due to increases in attacks against Internet Explorer 6 and Internet Explorer 7 using the vulnerability discussed in Security Advisory 981374. I want to reiterate that Internet Explorer 8 is not affected by this issue so customers using this version are not affected by these attacks and we continue to encourage customers to upgrade to the newer version because it provides more security and protection.
Today we issued our Advanced Notification Service (ANS) to advise customers that we will be releasing security update MS10-018 tomorrow, March 30, 2010, at approximately10:00 a.m. PDT (UTC-8). MS10-018 resolves Security Advisory 981374, addressing a publicly disclosed vulnerability in Internet Explorer 6 and Internet Explorer 7. Internet Explorer 8 is unaffected by the vulnerability addressed in the advisory and we continue to encourage all customers to upgrade to this version to benefit from the improved security protection it offers.
Hi everyone, I’m writing to let you know that we have updated Security Advisory 981374 with new workaround information. We are aware that exploit code has been made public for this issue. As with our last update, Internet Explorer 8 remains unaffected by the vulnerability addressed in the advisory and we continue to encourage all customers to upgrade to this version.
Hi everyone, On Friday 2/26/2010, an issue was posted publicly that could allow an attacker to host a maliciously crafted web page and run arbitrary code if they could convince a user to visit the web page and then get them to press the F1 key in response to a pop up dialog box.
Hosts: Adrian Stone, Senior Security Program Manager Lead Jerry Bryant, Senior Security Communications Manager Lead Website: TechNet/security Chat Topic: January 2010 Out-of-Band Security Bulletin Date: Thursday, January 21, 2010 Q: I understand the severity for workstaitons. Is the severity lower for servers in terms of this vulnerability, since most servers (except Terminal Servers) do not use IE?
We wanted to provide a quick update on the threat landscape and announce that we will release a security update out-of-band to help protect customers from this vulnerability. Based on our comprehensive monitoring of the threat landscape we continue to see very limited, and in some cases, targeted attacks. To date, the only successful attacks that we are aware of have been against Internet Explorer 6.
Yesterday, the MSRC released Microsoft Security Advisory 979352 alerting customers to limited, sophisticated attacks targeting Internet Explorer 6 customers. Today, samples of that exploit were made publicly available. Before we get into the details I want to make one thing perfectly clear. The attacks we have seen to date, including the exploit released publicly, only affect customers using Internet Explorer 6.
Based upon our investigations, we have determined that Internet Explorer was one of the vectors used in targeted and sophisticated attacks against Google and possibly other corporate networks. Today, Microsoft issued guidance to help customers mitigate a Remote Code Execution (RCE) vulnerability in Internet Explorer. Additionally, we are cooperating with Google and other companies, as well as authorities and other industry partners.
Today we released Security Advisory 977544 to provide information, including customer guidance, on a publicly reported Denial-of-Service (DoS) vulnerability affecting Server Messaging Block (SMB) Protocol. This vulnerability, in SMBv1 and SMBv2, affects Windows 7 and Windows Server 2008 R2. Windows Vista, Windows Server 2008, Windows XP, Windows Server 2003 and Windows 2000 are not affected.
We’d like to give everyone an update on the situation surrounding the new Microsoft Server Message Block Version 2 (SMBv2) vulnerability affecting Windows Vista and Windows Server 2008. Easy way to disable SMBv2 First exploit for code execution released to small number of companies Mitigations that help prevent attacks Status of fixes Easy way to disable SMBv2
We’ve just released Microsoft released Security Advisory 975497 that provides information about a new, irresponsibly reported vulnerability in SMB 2.0. Our investigation has shown that Windows Vista, Windows Server 2008 and Windows 7 RC are affected by this vulnerability. Windows 7 RTM, Windows Server 2008 R2, Windows XP and Windows 2000 are not affected by this vulnerability.
Hi Everyone, Today we updated Security Advisory 975191 as we are now seeing limited attacks. Additionally, a new proof of concept published allowing for Denial of Service (DoS) attacks on Windows XP and Windows Server 2003 with read access to the File Transfer Protocol (FTP) service. This does not require Write access.
Hi Everyone, This is Alan Wallace, senior communications manager for our security response communications team. Today, Microsoft released Security Advisory 975191, to provide customer guidance and protection from a vulnerability that could allow remote code execution on affected systems running the FTP service in Microsoft Internet Information Services (IIS) 5.0, 5.